b22cd05c51
The bulk of this change is actually correcting missing returns in the Dart SDK. Bug: https://github.com/dart-lang/sdk/issues/28233 Change-Id: I52bcbc6c6f4a129d3fc22003f4448a7c3d4487ad Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100301 Commit-Queue: Samuel Rawlins <srawlins@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>